<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    

</head>
<body>
    


    <!--流行写法-->
    <script>
        for(var i=0;i<10;i++){
            document.write("<font color='red'>"+i+"</font><br/>");
        }
    </script>
</body>
</html>